Lifting-jack for motor and other vehicles



F. L RAPSON.

LIFTING JACK-FOR MOTOR ANO OTHER VEHICLES.

APPLICATION FILED APH. I2. I9I8.

Emtente NOVI. 29, MEL

6 SHEETS-SHEET 1.

F. L. RAPSUN.

LIFTING JACK FOR MOTOR AND OTHER VEHICLES.

APPLICATION FILED /IPR.I2.1sIa.

6 SHEETS-SHEET 2.

lygwf, Palme@ Nov. 29,19%.

/A/ www@ F. L. RAPSON.

LIFTING )ACK FOR MOTOR AND OTHER VEHCLES.

APPLICATION FILE'D APR.12,'1918.

gigo Fatentel Nov,l 29, H2L

6 SHEETS-SHEET 3.

12 l melf/ww FL, WA P50/V F. L. HAPSON.

LIFTING JACK FOR MOTOR AND OTHER VEHICLES.

APPLICATION FILED APR. I2. 1918.

l ,98?9 Patented Nov. 29, 1921.

' e sHEETsnsHEEI 4.

` F. L. RAPsoN. LIFTING JACK FOR MOTOR AND OTHER VEHICLES.

APPLICATION FILED APR. I2. 1918. T gym'g. Emme@ Nov.. 29, 19m.

6 SHEETS-SHEET 5.

- F. L. FIA-'PSOM LIFTIMG JACK FOR MOTOR AND OTHER VEHICLES APPLICATION FILED APII. I2. 1918.

Igw; www@ Nove 29, 19m

6 SHEETS-SHEET 6. I. Y

50 Fil/g M;

Fig. 1 of a modified form of jack;

UNITED STATES' PATENT OFFICE.

EEEDEnIcx LIoNELnAPsoN, 0E LIVERPOOL, ENGLAND.

LIFTING-JACK FOR MOTOR D OTHER vVEHIClLES.

To all whom it may conce/rn Be it known that I, FREDERICK LIONEL RAPsoN, a subject of His Majesty the King of England, and resident of Liverpool', in the county of'Lancaster, Kingdom of En land, have invented certain new and usefu lImprovements in or Relating to Lifting-Jacks for Motorand other Vehicles, of whichtheV following is a specification.

This invention relates to improvements in lifting .jacks and the like `for use on motor road and other vehicles.

The invention has for its object to provide i on a motor road vehicle such as a motor car and adjacent to one orvmore of thewheels,

a device to which may be permanently or def tachably hinged or connected a lifting jack which is adapted to be operated by a suitable handle, wheel, lever, or the like so that the Weight of the car canrbe taken oll each wheel to relieve the tires when in the garage, or to jack the car up when it is desiredto repair punctures or eil'ect other repairs, or to raise the car for washing or inspection purposes. A further object is to so arrangethe jacks on the vehicle that they .will occupy a small space and be screened from view when in their inoperative position'. A further object is toprovideattachment means adjacent to each wheel so that a single jack can be instantly attached to or be detached from, the said means. i

' A further object 1s to provide anti-friction means in the jack element to enable the vehicle or a part thereof to be raised or lowered with? the minimum effort.

With Ythese' and other objects in view the invention consistschiefly in providing adjacent to each wheel a device to which may be detachably or permanently hinged or connected a self contained jack element.

The invention will now be described with reference to the accompanying drawings in which,

Figure 1 is a sectional side elevation showing the improved jackin its operative posi-A tion under the axle of a vehicle; s

Fig. 2 is a front elevation, and Fig. 3 is a perspective yiew thereof; j Fig.` 4 is a 'similar view to .that shown in Fig. 5 is a sectional front elevation oi a Vmodified form of jack in its. operative position under theaxle of a v'ehicle`; and

` Fig. 6-iS a part side elevation. thereof;

ig. c7. is av perspective view of one formV Specilcatilon of Letters Patent. Patented Nv. 29, 1921. Application led A'pril 12, 1918..- Serial'No. 228,100. i

,thread shown in Fig. 1 the circulation of the rballs being arranged through the shaft,

Fig. 11 is a sectional elevation showing'a combined thrust and anti-friction thread and Flg. 12 is a sectional elevation of part of a jack showing a further modified form of anti-friction thread.

As shown more particularly in Figs. 1, 2, 3 and 7 one element 1 of a hinged joint is secured to the outer portion of each` laminated spring 2 of the vehicle adjacent to the axle 3 thereof by U-shaped bolts 4 disposed over the spring 2 or by bolts and plates on the upper side ofy the said spring. This element 1 of substantially inverted U. shape, is formed The jack element comprises a substantially cylindrical casing'l() in which is slid.l` ably mounted the sleeve member 8 having at its lower endl an .internally screw threaded block .or nut Y11. Within the'sleeve member 8 and nut 11 is rotatably mounted a rod 12 cut with a` deep square thread to coperate with the thread cut in the block or nut 11. A semicircular or other shaped groove 13 is cut on the upper side of the thread on the, rod 12 and a similar coperatingJgroove- 14 is cut in the under side of the thread in the nut 11. Within the groovesl and 14 are disposed a number of anti-friction balls orf 4with a pair of ,hooks or curved recesses or the'like 15. vThe outer ends of vthe groove l 14 inthe nut 11 are connected by a through channel' 16 to provide for the circulation. of the balls 15. l.

It will be seen from Fig.v 1 of the drawings that wherev the-balls 15 enter or leave the rod 12 or the n'ut'll' the ball races or grooves are. inclined and cut deeper ,so that the balls 15 do not Iproject above -or within', theside of thread. i he balls 15 in the other portion of the ball race may. be sunkabove their centers, preferably to a depth of about three quarters of their size. If desired rollers may be provided in place-of balls between the coperating faces.

The sleeve 8 is preferably provided with a slot 17 to receive the inner projecting end of a screw 17 threaded into the casing 10 versel shaft 20. This .shaft 2O is'l rotatablyl mounted in the base' of the casing l10 and a;

v suitable thrust bearing 21 is provided beflange or extension having interior and eX-.

tween the casing 10 and the said bevel wheel 19. The shaft 20 is^formed with a squared 0r other suitably shaped hole or recess 22 for 4the reception of the squared or other suitabl shaped end of an operating handle or the like. shape and when of considerable length-may be constructed in any suitable manner, to fold'up neatly. On the outer end of the shaft 20 is-preferably secured a ratchet wheel 23,'and'a pawl 24 is pivoted on the casing- 10 to engage with the lsaid ratchet -wheel 23 so that the jack can be raised and the lowering prevented until the said pawl 24 is placed out of engagement. The jack is preferably lowered by turnin the detachable handle in the opposite direction when the'pawl 24 is disengaged. The casing 10 is rendered dust proof byscrewing on the upper end jthereof an annular cover plate- 25, a suitable washer 26 being disposed between the upper end of the casing `10 and the cover plate 25.

' The bearing which receivesthe short inclined shaft 2() is provided withan annular terior bearing faces, and the ratchet wheel 23 is provided with. an annular recess into which the bearing flange extends and the said ratchet wheel.is arranged onftheexterior bearing surface of the'said flange. The ratchet wheel 23 and the pinion 19 maintain the short inclined shaft in proper position in the bearing. v

In operation, and when a hook device 1 is secured 'a jacent to each wheel, in the manner previously described, the jack element which may be stored away in any convenient art o'f the car, is placed on the hook adiacent to the Wheel it is desired to raise. When the jack device ishooked on, the weight 'thereof swings the jack vto a vertical position and the lug or extension 9 thereon under the axle 3 and thus enables the driver to instantl put the jack in position without grovehng under the axle 3 to find a firm place. The jack 'can now bd operated by inserting the squared end of the handle'in thesquared recess'22 in the vspin- This handle is preferably of T.

the medium of the'bevel wheels 19'and' 18 and raise the sleeve and the end ofthe axle and the adjacent wheel from the ground so that repairs can be executed. The wheel4 may be lowered preferablya-utomatidally byl raising the pawl/24 out of engagement .with the ratchet wheel 23, o r by rotating thelhandle in the opposite direction as will be well understood. Thevjack can now be hooked olf the axle 3 and stored in any convenient place on the car, Aor itv can be turned oni or"by other suitable means.

In the construction showninjFig.v 3"the top ofthe sleeve 8 is formed with a pair of lugs 7 adapted to carry the swivel pin' i 4 the rod 12 is formed with a helical semi` circulai groove 27 and a similarcoperating groove 28 is formed in the nut 11.y Within the grooves 27 and 28 are privided {antlfriction balls or -the like 29 to form the screw thread. The outer ends of the groove l 28 in the nut 11 are connected by. a through channel 30 to provide for the circulation of the balls 29. In this construction the jack could be automatically lowered by lacing the pawl 24 out'ofeng'agement with the ratchet wheel 23. A

In a modiiied form"` of jack element as shown in Figs. r5 and 6 the internal screw threaded nut 11 or sleeve extension 8 thereon is, provided .or formed at its upper end' iwith the bevel wheel 18 which is adapted to mesh with another bevel wheel 31 mounted on a transverse shaft or spindle 32. Thisv bevel wheel 31 is formed in onewith or connected toa ratchet wheel 33 freely1 mounted on the saidv spindle 32, suitable anti-'friction ballbearings 34 being provided if desired.

`The ratchet wheel 33 is adapted to be actuated through the medium of a pawl 35 by reciprocating a hand levermol nted on said spindle 32. The pawl 35l is mounted on vthe said lever or on a casing 36 into #which the end of the-said operating lever is adapted to be placed when a detachable hand lever -is required. The pawl 35 on the ratchet 33 is so arranged that it 'fmay be reversed to engage'the ratchet 33 for lifting or for lowering the ack.

Upon the casing- 10 an at right angles to the lug 37 carrying the spindle 32- is formed,

its swivel connection andbe secured to the springor chassis by a strap, a spring clip j Legame x. formed with an venlarged flanged base or ootstep 38 which is adapted to engage the ground when in its operative position. The

flange 38 on this rod 12 is adapted to contact, wheny in its normal or raised position, with the lower end of the 'ack casing 10 and a suitable washer or the like 39 is provided on the upper side of the flange 38 to prevent the entry of dust and dirt and also act as a buffer or cushion when the screwed rod 12 is moved upward. A suitable thrust bearing 40 is provided between the nut 11 on the lower end of the sleeve 8 and a closing ring 41 is screwed into the lower end of the casing 10 and another thrust. bearing 42 is provided at the upper end of the casing 10 between the upper side of the bevel wheel 18 on the sleeve 8 and a bearing formed in the top of the casing 10. A depending rod 43 is formed on this bearing to guide the screwed rod 12.

1n this construction the top of the casing 10 is'formed with a pair of lugs 7 adapted to carry the swivel. pin 6 which is adapted to engage with a single hook 5 depending from the element 1.

1f desired jacks constructed as previously described'can be permanently secured by a swivel connection to each axle 3 or to each of the springs 2 thereon adjacent to the wheels, and the jacks may be so arranged that their lower ends may be detachably secured to the outward portions of the wheel springs 2 by clips or other means when in their inoperative position as will be well understood.

In order that the improved jacks above described may be fitted to the rear axle ot' a vehicle l provide a litting shown in Fig. 8. In this construction a plate 44carrying the pair oi'- hooks 5 is connected to the rear axle by an embracing strap plate 45 and a flanged extension 46 is provided on the underside of the lplate 44 to take the place of the front axle 3. Thus the hook element on the rear axle is yapproximately at the same height from the ground as the element 1 on the front axle.

In a further modilied construction of the jack attachment 'means as shown in Fig. 9 the upper end of the jack is formed with a head 47 which is adapted to slide in rabbets 48 formed in the underside of a plate 49.

adapted to be secured to the axle 3 of the vehicle by U shaped bolts 50. The front end ot the head 47 is beveled to allow it to enter the rabbets 48 easily and the said head 47 is adapted to fit loosely in the rabbets sol that it can be placed in position when one of the wheel tires is flat andthe axle is out of parallel with the ground. Alternatively the plate 49 could be secured tothe top of the jack to engage with the head 47 secured to the vehicle ln the anti-friction screw threads for the jacks previously described scribed for the previous construction.

it will be seen that either the sleeve or nut 11, or thescrewed rod 12 is rotated When/ the nut 11 is rotated the balls or rollers are returned through a channel in the nut, but it will be understood that the balls or rollersv could be returned through the rod 12 when this latter is rotated; thus a running ball race is provided.

Referring to Fig. 10 which illustrates a running thrust race similar to that shown in F ig. 1 the (shaft 12 is formed with an in-y terior channel 50 for the circulation of the balls 15.

ln a Jfurther modified form of anti-friction thread as shown in' Fig. 11, lll provide a running ball and lthrusty race by combining the running ball r'ace with the running thrust race previously described. In' this instance a deep thread is cut in the shaft 12 and nut 11 and the balls 29 are placed in the cooperating semi-circular grooves 27 and 28l and circulate through the channel 30 as dIen addition to this a helicalsemi-circular groove 13 is cut in the s-ide ot' the thread in the shaft12, and a cooperating groove 14 is formed in the interior thread in the nut 11.

Within these cooperating grooves 13 and 14 is disposed a number of anti-friction balls 15. These latter balls 15 are adapted to return and circulate through a second channel 16 formed in the nut or block 11 or the two sets of balls* 15 'and 29 could be returned through theshaft 12 when the nut 11 is l may Jfreely revolve on the said pins 51. Sur-V rounding the shaft 12 is slidably mounted'a sleeve, block or the like 8 provided internally with a helical groove 53'of any convenient shape to receive the balls or the like 52 on the outwardly projecting pins 5101) the rod f or shaft 12. 1f desired. the under side of the groove or thread 53 could he shaped or grooved to receive a portion of the freely rotating balls 52. The sleeve 8 is slidably mounted in the casing 10, and the shaft l12 is rotated by a handle through the medium of bevel wheels 18 and 19 disposed in the base of the said casing 10. Theupperendof the sleeve or block 8 is provided' or formed with an outwardly extending lug 9 to engage under the axle 3 of the vehicle and with one element or portion of -a hook attachment to cooperate or engage with the other portion secured to ln operation` the shaft is rotated by the handle or other suitable moans through the `medium of the bevel wheels.4 `This action Awill cause the vballs '52 to rotate (n their spindles 51, move the sleeve 8 upwardly and thereby rais/e' the axle 3 ofthe vehicle in a free and 'easy manner.

In a slightly modified construction the helical grooves 53 are formed on thedshaft 12 and the balls 52 arev arranged on pins 51 inwardly projecting from the sleeve 8.

1f' desired, a number of isolated sets of balls 52 may be arranged along the shaft 12 or the sleeve 8. Eachset preferably consists of twelveballs arranged helically at radial distances of approximately 90.

What vI claim isy- 1. A liftingjack for use on motor and other Vehicles, and means includin'ga pintle and an open hook for-detachably hinging .the lifting jack to the vehicle in position to swing automatically by gravity benea'th the aide of the vehicle, whereby the jack may be applied to either end of either aile for ele- Y vating the wheel and may be removed and carried inthe vehicle after use. 4 '2. A lifting jack for motor and other vehicles, and means for detachably hinging the lifting jack to the vehicle in position. to

swing by gravity beneath-the axle of the vehicle, said means including spaced'l open ing from the lifting jack and fitting between hooks carried by the vehicle, a lug project'- thespaced hooks and provided with a laterally y. projecting pintle arrangedin the said hooks and movable into and out ofthe open hooks to engage and disengage the. with thefhinpgingjmeans. .A

'3. A lifting j'ack lfor motors and other lifting jack vehicles including av casing having an offset .lower portion at one sideprovided withan annular bearing flange set at an inclination 'P a l n and having interior and exterior bearing faces, ai sleeve operatingin the casing and provided with a nut,ahe lically lgrooved rod extending into thesleeve and coacting with the nut to raise or lower'the sleeve when the rod is rotated, a gear mounted on the lower end vof the rod, a short inclinedvshaft journaled in said bearing flange and provided at connectingthe lifting jack to the vehicle in'- ciu/ding a substantially hook shaped sup' porting portion or member forming a recess and carried by the vehicle, and a projecting portion projecting.. substantiallyv horizontally from and carried'by the lifting jack andA arranged in the said recess, said projectving portion being movable Yinto and out of the recess .to connect the lifting jack .with

and disconnect the same from a vehicle without the removal of the fastening devices.

5. vA lifting jack for use 'on motor and other vehicles'and` means for detachably connecting the lifting jack tofthe vehicle including lspaced substantially hookf shaped Side portions or members forming opposite recesses and carried by the vehicle, and lat;- erally :projectin portions carried by the vliftingjack an arranged in said recesses and' movable into and \o u t of the same to connectthe lifting jack ,with the vehicle and disconnect the said lifting jack therefrom without the removal of the'f'astening de -l Uvices.

In testimony whereof -lhave hereunto signedjmy name.

FRED. LIONEL RAPSON.- 

